Detachable saw-handle.



No. 710,904. Patented Oct. 7, |902..

C. W. STITES. i DETAGHABLE SAW HANDLE.

(Application filed Feb. 8, 1902.)

(No Model.)

ATTORNEYS m: Noam varias no, Fumo-uma. wAsnmmon. n. c

UNITED STATES PATENT GEEICE.

CHARLES W. STITES, OF NEVORK, N. Y.

DETACHABLE SAW-HANDLE.

SPECIFICATION forming part of Letters Patent No. 710,904, dated October '7, 1902. Application filed February 8, 1902. Serial No. 93,201. (No model l To (tI/Z wil/0m, it m/fty concern:

Be it known that l, CHARLES W. STITEs, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented new and useful Improvements in Detachable Saw-Handles, of which the following is a full, clear, and exact description.

This invention relates to handles for handsaws and is of a class which permits the sawblade to be detached from the handle or connected therewith, as may be desired.

The object of my invention is to provide features of novel construction for the detachable saw-handle for which the Patent No. 666,572 was issued to me January 22, 1901, whereby said detachable saw-handle is rendered more simple and practical and the cost of manufacture is reduced.

The invention consists in the special construction and combination of parts, as hereinafter described, and defined in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side View of the improved sawhandle secured upon the rearend of-a sawblade. Fig. 2 is a sectional plan View substantially on the line 2 2 in Fig. 3, the sawblade being removed. Fig. 3 is a side view of the saw-handle adjusted to receive the saw-blade and the rear end portion ofthe sawblade positioned on the handle ready to be clamped thereto. Fig. 4 is a front end view of the clam ping-leaves of improved construction, seen in the direction of the arrow in Figs. 2 and 3. Fig. 5 is a side view of the hinged clamping-leaves held together by an improved latching device. Fig. 6 is an enlarged transverse sectional view of the latching device substantially on the line 6 6 in Fig. 7. Fig. 7 is an enlarged partly-sectional side view of lapped forward members on the clamping-leaves of the improvement. Fig. Sis a transverse sectional View substantially on the line 8 S in Fig. 7. Fig. 9 is a side view of a rear end portion of a saw-blade perforated to adapt it to receive locking-studs which project from one clamping-leaf of the improvement; and Fig. 10 is a side view of the handle attached upon the saw-blade, taken oppositely from that represented in Fig. 1.

In the drawings, 11` represents the grip portion of the saw-handle, formed as usual and preferably of hard-wood material, a flange 12 of less thickness than the grip-piece projecting forwardly therefrom and having its outer surface alined with a corresponding side of the grip-piece. The thickness of the flange 12 should be less than half that of the grippiece 11, and its junction therewith produces a right-angular shoulder, as shown clearly in Fig. 2.

A saw-blade clamp of improved construction is provided and consists of two similar clam ping-leaves 13 14,which leaves are formed of sheet metal and at their forward edges conform with the undulation given to the like edge on the iiange 12. An offset iiange is formed on each clamping-leaf 13 14 by bending a rear portion of each clamping-leaf at a right angle, land these offset members do of respective leaves 13 14 are hinge-jointed to gether, as shown at l).

The width of the offset iiange d is so proportioned that when the clamping-leaf 13 whereon it is formed is seated upon the inner surface of the flange 12 and thereto secured by screws c then the offset flange o will contact with the offset shoulder on the saw-handle and the hinge-joint l) will be disposed at the outer-corner of the shoulder, whereby the clamping-leaf 14 may be freely swung away from the clamping-leaf 13 and be spaced from the nearest side of the grip-piece 11 when parallel therewith, as represented in Fig. 2. In Fig. 4 it will be seen that screw-holes c' are formed in the offset flange a, at a suitable distance apart, for the reception of screws c, that engage with the handle-stock and aid in holding the clamping-leaf 15 in place thereon.

A filling-block 15, of like form to that of the clamping-leaf 14, is fitted upon the normal outer surface of said clamping-leaf and is thereto secured by screws c, and it will be seen that if the parts 14 15 are folded toward the clamping-leaf 13 so as to be parallel therewith a crevice d will intervene the leaves 13 14 of suitable width to receive theblade of a saw, such as 16, which is to be held clamped between them, this folded adjustment of the leaf 14 and filling-block 15 being indicated by dotted lines in Fig. 2.

In the clamping-leaf 13, at a suitable distance from the offset flange @,two studs 17 are secured in a plane parallel therewith, andv these similar studs have circular edges and convexedfree ends, as shown in the drawings. The studs 17 extend through perforations in the clamping-leaf 13, said extended portions of the studs being somewhat reduced in diameter, and thus provide a shoulder on each stud which determines the degree of projection had by them on the side of the clamping-leaf that is free from the flange 12. The reduced bodies of the studs 17 are threaded for the reception of the flanged socketnuts 17, and to secure them in place in the clamping-.leaf 13 a washer e is mounted on each of said threaded portions and secured thereto by any suitable means, so as to bear forcibly upon the adjacent surface of the clamping-leaf upon which said studs are held, as indicated in Figs. 2, 4, and 8.

In the forwardly-projecting member 13, formed on the clamping-leaf 13 at its upper edge, another stud 18 is secured, so as to project its head at the same side of the leaf as the studs 17, and on the reduced threaded body of this stud, which passes through a perforation in the member 13, a securingwasher e is mounted and aiiixed, a flanged socket-nut 18 being screwed upon the threaded body of the stud 18 and having a like form to that of the nuts 17. The stud 18'has its head notched transversely on the upper side, as shown plainly at g in Fig. 8, thus aording a catch-lip g for interlocking engagement with a latch-bar 19, the rounded free end of the head portion of the stud permitting a latched engagement of the latch-bar to be readily effected, as will be hereinafter more fully described.

Intermediately of the threaded body portions of the studs 17 a similar threaded stud 17 is affixed by one end in the clamping-leaf 13 and projects therefrom at the same side as the threaded portions of the studs 17. (See Figs. 3 and 4.) A danged socket-nut 17c (shown in Fig. 10 and similar to the nuts 17 18) isprovided for the stud 171, and in service said nuts-are bedded in countersunk holes in the flange 12, formed opposite the studs upon which they are respectively screwed, and thus serve to bind the clamping-plate 13 upon the flange 12 in a reliable manner, coacting with the screws before mentioned for such a purpose, as indicated in Figs. 2 and 10.

The latch-bar 19 is in the form of a straight strip of metal having at one end an integral leg member 19, that is longitudinally slotted from a point near its upper edge downward a suitable distance, said slot receiving a guidestud 19, projected from the leaf 14 and which loosely occupies the upper portion of the slot, and a spiral spring 19, placed in the slot below the guide-stud, by its expansive force serves to normally press the latch-bar downing a lateral lip h formed thereon to facilitate the manipulation of the same.

It will be seen in Figs. 5 and 7 that the capplate 19d is secured upon the end of the guidestud 19,which extends through the leg 19, this plate having a loose contact with the leg, so that the latter may freelyvslide beneath it. A clip-plate 19e may be employed to hold the latching end of the bar 19 in loose cont-act with the clamping-plate 14, Vthis clip-plate having L shape edgewise and projecting up from the clamping-leaf14 over the end of the latch-bar 19, so as to engage therewith and bear slightly thereon, thus preventing outward displacement of the latch-bar.

The relative position of the latch-bar 19 on the clamping-leaf 14 is such that when said leaf is folded in the direction of the clamping-leaf 13 the lower edge of the latch-bar near one end will engage with the catch-lip g' on the stud 18 and drop into the notch g when the clamping-leaf 14 is fully folded, as clearly shown in Fig. 8.

In Fig. 9 the rear end portion of the sawblade 16 is represented as having three perforations 'i t" t formed in it, which respectively are adapted to receive the heads of the studs 18 17 17. The perforations in the sawblade 16 are similar and each is in the form of a circular hole, through which the head of a stud 18 or 17 will pass freely, and from the lower edge of each circular hole a paralleledgedslot extendsdownward or toward-the teeth o f the saw-blade, the lower ends of the slots being flat.

At each side of the head of each stud 17 18 a vertical groove m is formed adjacent to the surface of the clamping-leaf 13, from which thestuds project, said grooves being of such depth as will permit the side edges of the slotted extension of each perforation it" Q12 to slide in said grooves when the head of a respective stud 17 or 18 is introduced through the circular upper part of such perforations in the saw-blade, and the saw-blade is slid upwardly after the studs are entered, so that their heads project beyond the saw-blade, which engagement of parts will lock the sawblade upon the clamping-leaf 13.

In the clamping-leaf 14 three orifices n are formed at such points as will dispose each one opposite a` respective stud 17 18 when the clamping-leaf 14 is folded toward the leaf 13, and when fully folded so as to press upon the saw-blade 16 the studs 17 18 will pass through said orifices and the latch-bar 19 latch into the notch g in the stud 18, thereby securing the saw-blade in clamped condition between the leaves 13 14.

To prevent the saw-blade 16 from sliding downward after it has been clamped between the leaves 13 14, two locking-pins 21 are projected from the clamping-leaf 14 upon the side which is nearest to the saw-blade when it is placed on the studs 18 17, these pins being so located that they will respectively pass into the circular portions of the keyholeshaped perforations M when the clampingleaf 14 is folded upon said saw-blade.

The pins 21 when passed through the perforations i i have contact with the upper edges of said perforations, and their inserted ends then enter perforations o, formed in the clamping-leaf 13 above the studs 18 17.

l/Vhen the saw-blade 16 is to be released from the handle of the saw, pressure is applied upon the projecting lower end of the latch-bar leg 19, which will raise the latchbar against the stress of the spring 19c and elevate the lower edge of the latch-bar above the latch-lip g of the stud 18. The leaf 14 and filling -block 15 thereon may now be swung away from the saw-blade and the latter by a downward movement and outward pull be disengaged from the handle.

It will be seen that the novel features cornprise the clamping-leaves 13 14, having theY offset flanges cr a thereon jointed together at their inner edges, the locking-studs 17 18,that are grooved along their sides, and thus adapted to interlock with parallel edges on the mating keyhole-shaped perforations formed in the saw-blade, also the locking-pins 21, that engage with the upper edges of the perforations c' i" in the saw-blade to prevent its accidental release from the locking-studs 17 18.

The invention further consists in the provision of flanged socket-nuts which screw upon threaded projecting portions of the studs 17 17b 18, thus clamping the handlebody and the leaf 13 together in areliable manner.

The improvement also consists in the novel construction of the latching device and its peculiar engagement with the notched locking-stud 1S to hold the swinging leaf 14 clamped upon the saw-blade.

It will be understood that the particular method of engaging the locking-studs 17 1S with the keyhole-openings in the saw-blade affords a positive lock between the saw-blade and handle-stock of which the flange 12 is a portion, so that the function of the leaf 14 and pins 21 thereon is merely cooperative for preventing a release of the locked saw-blade from the studs with which it is engaged.

I-Iaving thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a detachable saw-handle and sawblade, the combination with the handle-stock having a flanged extension of less thickness than the grip portion of the stock, and two hinged clamping-leaves, one leaf being secured upon the flanged extension and the other leaf foldable thereon, of three lockingstuds having heads and projected from the fixed clamping-leaf, each head portion having two opposite parallel side grooves therein, and the saw-blade having three keyholeperforations,each comprising a rounded opening above a depending slot, said openings being adapted to receive the heads of the studs, and the side edges of the slots engaging with the parallel side grooves in said heads, thus binding the saw-blade upon the fixed leaf, two locking-pins projected from the foldable leaf and adapted to enter respective rounded openings above the heads of the locking-studs therein so as to prevent their release from the saw-blade, and an adjustable latching device adapted to hold the foldable leaf secured upon the saw-blade.

2. In a detachable saw-handle, the combination with a handle-stock having a ilanged forward extension, two laterally flanged clamping -leaves hinged together at their meeting edges, one of the clamping-leaves being secured upon the flange of the handlestock, and locking-studs projected from the fixed clamping-leaf, the other leaf having perforations which will receive the heads of the locking-studs, of a latching device comprising an L-shaped latch-bar, slotted in its upright member, that is held to slide on the swinging leaf by a guide-stud on the swinging leaf and that works in the slot, a spring in said slot pressing the latch bar downwardly and into engagement with a groove in one of the locking-studs, and a keeper-plate held on the guide-stud and adapted to loosely secure the latch-bar on the guide-stud.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES XV. STITES. lVitnesses:

J No. M. RITTER, WM. P. PATTON.

IOO 

